Solid Water Melt Dominates the Increase of Total Groundwater Storage in the Tibetan Plateau

Zou, Yiguang1; Kuang, Xingxing1; Feng, Yuqing1; Jiao, Jiu Jimmy2,3; Liu, Junguo1; Wang, Can1; Fan, Linfeng1; Wang, Qingjing4; Chen, Jianxin1; Ji, Fang1,5; Yao, Yingying6; Zheng, Chunmiao1

2022-09-28

10.1029/2022GL100092

GEOPHYSICAL RESEARCH LETTERS   影响因子和分区

0094-8276

1944-8007

Understanding how groundwater storage (GWS) responds to climate change is essential for water resources management and future water availability in the Tibetan Plateau (TP). However, the dominant factor controlling long-term GWS changes remains unclear and its responses to climate change are not well understood. Here we combined multi-source datasets including in-situ measurements, satellite observations, global models, and reanalysis products to reveal that GWS increased at 5.59 +/- 1.44 Gt/yr during 2003-2016 while showing spatial heterogeneities with increasing trends in northern TP and glacial regions and declining trends in central and southern TP. The accelerated transformation from solid water (glaciers, snow, and permafrost; -17.72 +/- 1.53 Gt/yr) into liquid water provide more recharge to groundwater, dominating the total GWS increase. This study contributes to a better understanding of the hydrological cycle under climate change and provides key information for projecting water availability under different future scenarios in the TP.

groundwater storage climate change Tibetan Plateau Himalayas GRACE

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China["92047202","91747204"] ; High-level Special Funding of the Southern University of Science and Technology["G02296302","G02296402"]

Geology

Geosciences, Multidisciplinary

WOS:000859052700001

AMER GEOPHYSICAL UNION

GEOSCIENCES

Web of Science

1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China
2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
3.Univ Hong Kong, Shenzhen Res Inst SRI, Shenzhen, Peoples R China
4.Bur Hydrol, Changjiang Water Resources Commiss, Wuhan, Peoples R China
5.Harbin Inst Technol, Sch Environm, Harbin, Peoples R China
6.Xian Jiatong Univ, Sch Human Settlements & Civil Engn, Dept Earth & Environm Sci, Xian, Peoples R China

Zou, Yiguang,Kuang, Xingxing,Feng, Yuqing,et al. Solid Water Melt Dominates the Increase of Total Groundwater Storage in the Tibetan Plateau[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(18).

Zou, Yiguang.,Kuang, Xingxing.,Feng, Yuqing.,Jiao, Jiu Jimmy.,Liu, Junguo.,...&Zheng, Chunmiao.(2022).Solid Water Melt Dominates the Increase of Total Groundwater Storage in the Tibetan Plateau.GEOPHYSICAL RESEARCH LETTERS,49(18).

Zou, Yiguang,et al."Solid Water Melt Dominates the Increase of Total Groundwater Storage in the Tibetan Plateau".GEOPHYSICAL RESEARCH LETTERS 49.18(2022).